-18 is a rational number
It is a rational number
Yes, any number that can be expressed as a fraction is rational. Since 18 out of 2 is the same as 18/2, it is rational.
Yes - any whole number - even a negative number - is a rational number.
Rational.
Yes.
Yes because any number that can be expressed as a fraction is a rational number
yes it is an irrational numberNo because 18 is a rational number
18 is the ratio of 18 to 1. It's completely rational.
Yes.
Sqrt(18/2) =Sqrt(9) =3 which is rational.
The number, in the form of a ratio, is 18/100.